Files
reterminal-dm4/emmc-provisioning/scripts/fix-gadget-bootcode-on-host.sh
nearxos 031e1c3415 Enhance provisioning documentation and scripts for improved network boot and DNS management</message>
<message>Add new documentation files for device DNS management via DHCP and dnsmasq configuration. Update cloud-init scripts to ensure proper handling of /etc/resolv.conf and DNS settings, allowing for seamless integration with file.server. Modify existing scripts to support dynamic LAN subnet configuration and improve overall network boot functionality. These changes enhance user experience and streamline the setup process for the CM4 eMMC provisioning service.
2026-03-04 19:15:38 +02:00

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#!/usr/bin/env bash
# Run on the Proxmox host (as root) when rpiboot fails with "No 'bootcode' files found" / "rpiboot gadget empty".
# Cause: mass-storage-gadget64 has no real boot files (broken symlinks or Git LFS not pulled).
# This script removes broken symlinks and extracts bootcode4.bin from the installed rpiboot binary.
#
# Does NOT fix: "libusb_bulk_transfer returned -7" / "Failed to write correct length" — that is a USB
# transfer/timing issue (try USB 2.0 port, or rpiboot -m 2000). See PROXMOX-LXC-DEPLOYMENT.md.
#
# On host: bash fix-gadget-bootcode-on-host.sh
# From your machine: ssh root@HOST 'bash -s' < emmc-provisioning/scripts/fix-gadget-bootcode-on-host.sh
set -e
GADGET="${1:-/opt/usbboot/mass-storage-gadget64}"
RPIBOOT="${2:-/opt/usbboot/rpiboot}"
[[ -d "$GADGET" ]] || { echo "Error: $GADGET not found"; exit 1; }
[[ -x "$RPIBOOT" ]] || { echo "Error: $RPIBOOT not found (install usbboot first: install-usbboot-on-host.sh)"; exit 1; }
# Ensure readelf and objdump are available (binutils)
for cmd in readelf objdump; do
if ! command -v "$cmd" &>/dev/null; then
echo "Installing binutils (required for $cmd)..."
apt-get update -qq && apt-get install -y -qq binutils 2>/dev/null || {
echo "Error: $cmd not found. Install binutils: apt-get install -y binutils"
exit 1
}
break
fi
done
# Remove broken symlinks in gadget dir so we can replace with real boot file
for f in bootfiles.bin bootcode.bin bootcode4.bin bootcode5.bin; do
if [[ -L "$GADGET/$f" ]] && ! [[ -f "$GADGET/$f" ]]; then
rm -f "$GADGET/$f"
echo "Removed broken symlink $GADGET/$f"
fi
done
# If we already have a valid boot file, done
if [[ -f "$GADGET/bootcode4.bin" ]] || [[ -f "$GADGET/bootfiles.bin" ]]; then
echo "Already has bootcode4.bin or valid bootfiles.bin. OK."
exit 0
fi
# Get .data section file offset and address from ELF
readelf -S "$RPIBOOT" | grep -q "\.data" || { echo "No .data section"; exit 1; }
DATA_OFF=$(readelf -S "$RPIBOOT" | awk '/\.data\s/ { print "0x"$5; exit }')
DATA_ADDR=$(readelf -S "$RPIBOOT" | awk '/\.data\s/ { print "0x"$4; exit }')
LEN_SYM=$(objdump -t "$RPIBOOT" | awk '/msd_bootcode4_bin_len/ { print $1; exit }')
BIN_SYM=$(objdump -t "$RPIBOOT" | awk '/msd_bootcode4_bin\s/ { print $1; exit }')
[[ -n "$LEN_SYM" && -n "$BIN_SYM" ]] || { echo "msd_bootcode4_bin symbols not found in rpiboot"; exit 1; }
LEN_ADDR=$((0x$LEN_SYM))
BIN_ADDR=$((0x$BIN_SYM))
LEN_OFF=$((DATA_OFF + LEN_ADDR - DATA_ADDR))
BIN_OFF=$((DATA_OFF + BIN_ADDR - DATA_ADDR))
LEN=$(dd if="$RPIBOOT" bs=1 skip=$LEN_OFF count=4 2>/dev/null | od -An -t u4 | tr -d ' ')
dd if="$RPIBOOT" of="$GADGET/bootcode4.bin" bs=1 skip=$BIN_OFF count=$LEN 2>/dev/null
echo "Wrote $GADGET/bootcode4.bin ($LEN bytes). Verify: $RPIBOOT -d $GADGET -V"